Botany or Plant Biology

What is the usual function of the epidermal hairs on a leaf?

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2012-10-04 19:23:38
2012-10-04 19:23:38

to hold the moisture in the leaf

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The submerged leaf filaments are covered with brown hairs which function as roots for water and nutrients absorption. Sporocarps(i) are borne on submerged leaf filaments.


The lower epidermal layer of leaf has many holes (stomata) in it and guard cells surrounding these holes. In the roots the epidermis has many root hairs growing out of it or regions of dead root hairs where over time the roots have grown longer and the old root hairs are no longer needed to capture water. In the upper epidermis of a leaf you would see palisade cells just beneath the epidermal layer and a waxy cuticle just above.


Leaf epidermal cells are examined by making peelings of epidermal cells from both sides. Normally these peelings are stained and examined under the compound microscope.


An epidermal cell is a cell that is part of the outer layer of an organism. For example, in humans, skin cells are epidermal. Leaves on plants have epidermal layers on the top and bottom of the leaf.


The epidermal cell forms the outer layer of the leaf


Some are used to create more surface area. Some are used for protection and can be sticky or spiked and also some may be used to keep out a certain amount of light if needed.



A neem leaf is a narrow lanceolate leaf, about 6 times longer than it is wide.


Trichomes are plant hairs composed of one or more cells that serve multiple purposes, including discouraging insect predators, reflecting sunlight, and insulating the plant body. A nettleâ??s trichomes, for instance, irritate the skin of a person who touches the leaf.


There is a waxy layer called the cuticle that reduces evaporation from the leaf. It is produced by the epidermal cells of the leaf.


what is the function of blade of a leaf



To reduce stomatal transpiration hairs are present on underside of a leaf.


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The leaf and stem epidermis is covered in stomata, or pores. The stomacomplex regulates gas and water exchange in the leaf.




Some plants have small hairs on them for protection. Some of these hairs can produce substances that animals hate such as sticky substances. These hairs can also act as an insulator to the plant.


polymers cutin and/or cutan. With wax. Usually produced by epidermal cells.


the epidermal layer of a leaf or stem is green due to the presence of pigment carrying bodies called the chloroplasts.also it is seen the palisade tissue of the leaves to carry out photosynthesis



what is the function of each of the following external parts of a leaf?


Plants have tried to minimize the water loss by some adaptations like presence of sunken stomata only on the lower side of the leaf, cuticle and waxy depositions on the epidermal cells, leafless plants (certain cacti), presence of hairs, spines etc.


there is no particular function for the apex


The function of the veins in a leaf to help the leaf keep its shape just like how a handle on an umbrella helps it to keep its shape.



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